“…A higher attachment ability on hydrophilic surfaces in comparison with hydrophobic ones has been reported in many insect species at the adult stage such as Ceratitis capitata Wiedemann and Bactrocera oleae (Rossi) (both Diptera: Tephritidae) (Salerno et al, 2020a;Rebora et al, 2020), Acyrthosiphon pisum Harris (Heteroptera: Aphididae) (Friedemann et al, 2015), N. viridula (Salerno et al, 2017), Gastrophysa viridula (De Geer) and Cylas puncticolis (Boheman) (both Coleoptera: Brentidae) (Lüken et al, 2009), Cryptolaemus montrouzieri Mulsant (Gorb and Gorb, 2020), Harmonia axyridis (Pallas), Propylea quatuordecimpunctata (L.) (Salerno et al, 2022) and Coccinella septempunctata L. (all four Coleoptera: Coccinellidae) (Gorb et al, 2010;Hosoda and Gorb, 2012). A similar situation has been reported also in nymphs and larvae of different species, such as N. viridula (Salerno et al, 2020b), G. viridula (Zurek et al, 2015) and Rhadinoceraea micans (Schrank) (Hymenoptera: Tenthredinidae) (Voigt and Gorb, 2012). Such a decrease of the attachment ability on surfaces with increasing contact angle can be explained by the reduced role of the adhesive fluid in the generation of capillary forces, which are important for insect attachment (see review in Dirks and Federle, 2011).…”